Ingot turning machine



Oct. 27, 1931. F. l.. sABlN 1,829,573

INGOT TURNING MACHINE Filed Sept. 18, 1926 5 Sheets-Sheet l Oct. 27, 1931. F. 1 sABlN INGOT TURNING MACHINE Filed Sept. 18, 1925 5 Sheets-Sheet 2 Oct. 27, 1931. F. l.. sABlN INGOT TURNING MACHINE Filed Sept. 18, 1926 5 Sheets-Sheet 3 F. L. SABIN Oct., 27, 1931.

INGOT TURNING MACHINE Filed Sep.. 18, 1926 5 Sheets-Sheet 4 Oct. 27, 1931. F. l.. sABlN INGOT TURNING MACHINE 5 Sheets-Sheet 5 Filed Sept. 18, 1926 .lr U 6 7F60 14 76ML JQ/4M M MMV JMJ Patented Oct. 27, 1931 .Unirse STATES PATENT QFFCE FGRID L. SBIN, OF CLEVELAND HEIGHTS, OHEO, ASSIGNOR TO THE VELLIVAN EN- GNEFRING COMPANY, OF CLEVELAND, OHIO, A CORPCRATION OF"0H1O Incom TURNING MACHINE Application filed September 18, 1926. Serial No. 136,232.

This invention relates to an ingot turning machine adapted particularly for use with so-called continuous ingot heating furnaces.

lt is customary to heat ingots by placing them in one end of a long furnace and gradually moving them along the furnace until they reach the opposite end, the ingots at this point having reached a sufi'iciently high temperature to enable them to be worked in suitable machines, such as seamless tube forming machines. The furnace is provided on one or on each of its sides with doors, and the ingots are moved successively and `progressively along the furnace by a bar which is inserted in a door and then vswung laterally about a. pivot point so as to advance the ingot to a position such that it can be reached by the bar when inserted through thev opening of the adjoining door.

The ingot turning bar has heretofore been supported on a machine movable along a track parallel to the side of the furnace, but these 'machines have not been satisfactory because the bar, when swung laterally to advance an ingot, would strike and damage the furnaceV structure around the door Opening, making it necessary to frequently repair the furnace.

The object of the present invention is to provide an ingot turning machine having a turning bar so supported and moved that the bar can be inserted in the opening of any one of the doors and be given a full swinging stroke to advance the ingot without liability of engaging or injuring the door frame or furnace structure around the door opening.

, The machineV embodying my invention includes a machine body or carriage which is designed to travel along a track at the side of the furnace, and a turning bar is mounted on an upper carriage to move in an arcshaped path, the center of movement being at or adjacent the door opening, making it possible to swing the har through a considerable angle without engaging the furnace Ywalls around the door opening.

The invention maybe further briefly summarized as consisting in certain novel combinations and arrangements of parts and details of construction which will be described in the specification and set forth in the appended claims.

In the accompanying sheets of drawings, Fig. l is a diagrammatic view illustrating the furnace in section and showing conventionally the ingot turning machine, this view indicating the movement of the bar and of the carriage which supports it in advancing an ingot one step in the furna'ce; Fig. 2 is a top plan view of the machine, with a portion of the furnace in section; Fig. .3 is a side view of the same; Fig. 4 is a plan view of the lower carriage or body portion of the machine; Fig. 5 is a side view of the lower carriage as viewed from the front of the furnace; Fig. 6 is an enlarged end YView of the lower carriage; Fig. 7 is a sectional view through the ram whichcarries the turning bar and illustrates part of the supporting means for the ram; Fig. 8 is a side elevation of a part of the upper carriage illustrating the ro'clrer for the ram; Fig. 91 is a transverse sectional view substantially along the line 9-9 of Fig. 8; and Fig. 10 is a fragmentary sectional view substantially along the line 10-10 of Fig. 2.

Referring now to the drawings, I have illustrated at 10 a portion of a continuous ingot heating furnace in connection with which my improved machine has special utility. The ingots, some of which are shown at 11, are introduced at one end of the fur-- nace and are progressively moved along the furna'ce and finally delivered from the opposite end. Heat is supplied to the furnace in any suitable way, and when the ingots are removed from the far end of the furnace they are delivered to a suitable ingot handling and working machine such as a tube machine.

The furnace is provided along one or both sides with a series of `rather closely arranged vertical doors l2 through which a bar is inserted to progressively and successively move the ingots forward. If two rows of ingots are handled by the furnace at the same time, both sides of the furnace will be provided with these doors. as indicated in Fig. 1, and in such cases an ingot turning machine such as constitutes the subject matter of this invention may be provided at each side of the furnace or the same machine may be used on both sides.

lil)

The machine travels along the rails 13 of a track which extends parallel to the side of the furnace for its full length, and a suit#` able distance therefrom.Y The machine 'includes a lower carriage or body portion 14, the frame of which may be formed of a suit- Yable casting or may be built rup of structural material. It is provided with wheels V15 which run upon therails 16, andI is equipped preferably provided by supporting rtherollers on vertically disposed shafts, designated 18 in Fig. V6, having eccentric bearing portions -for the rollers. To provide for holding therollers'in any adjustedposition, the up per ends of the shafts are preferably pro`-.

vided with laterally. projecting members 19,

eachof whichcan be fastened inadjusted' position by a` locking pin adaptedto beinserted inany yone of a series of openings provided in said member orv in the structure immediately beneath it.

. opening.

Onthe top of theV frame of the lower-carkriagel two curved 4track rails 20 and 21 are provided, whichyit'v will' be observed, areA curved on arcs of concentriccir'rcles, the cen ter of which 1s forwardly of the machine,

Vandfora ,purpose to be explained presently, the center lies in ,the vertical longitudinal plane intersectingthe front wallV of the furnace lat about the center of the door openings. vThat is to say, whenthe lower carriage of the machine ispositioned opposite anyone of Vthe door openings 12', the'center of the Atwo arc-shaped tracks 20 and 21 will be at substantially the center of that particular door Adapted to travel on themas `2o `and 21 is an upper carriage consisting of asuitable frame 22 carrying a pair of rear wheels 23 which ride on top` ofthe rear curved rail 21, and a pair of front wheels 24: which ride on the top of the front curved-rail 20. Suitable guide rollers willbeprovided to keep the wheels of the upper carriage on the rails 20 and 21,:the`se usually' consistingv oftwopairs of rollers 25fengaging opposite 'sides of A thev frontrail 2O.V These rollers', or Vatleast one of each pair,are'adjustably mountedy like the guider rollers 17 previously described. Y

This upper carriage, 4which:supportsy the turning barl in fa manner to ,be`eXplained, lis

' adapted e to beY moved laterally over the arcshaped tracks 20fand21 by amoto'r' 26 car- Additionally, the lowerY ried by the frame 22 of the upper carriage, this motor having its shaft connected by a worm and worm wheel gearin 27 (see Fig. 2) to a vertical shaft 28 (seeY iigs. 2 and 10) having at its lower end a'pinion 29 engaging an arc-shaped rack 30 provided on the front sideof the front curved rail 2O.` The lateral movement of the upper carriage imparts to the turning bar,- which is illustrated at 31,

the lateral movement necessary toadvance an ingot by rolling it forward one step, as indicated at'the righthand side of Fig. 1. j

This turning bar is capable of other movtions in addition to the lateral swinging motion imparted to it by the travel vof the upper carriage on 'the track rails ofthe lower carriage. These additional movements include an in-and-outor endwise motionwhich enables the bar tobe retracted so a's to be clear ofY the furnace (note the lefthand side of Fig. l) and to be inserted forwardly into any of the vdoor openings. Additionally, `the .turning bar canbe swung vertically and turned about its longitudinal axis, the verti- 'cal' swinging movement and the turning of the barV about its longitudinal axis being utilized at y.times in separating two adjacent ingotsV should they come in contact with each other and become temporarily fused together. Y Generally, a series ofV turning bars are provided so that ifabar'becomesunduly heated it vcan bey replaced with a cold bar, and, ac-

Y cordingly, V'provision is l made for: detachzdolyV connectingV thegbar to" the 4part whichimmediately `supports itf A* suitable modeV of Y- connection'is illustrated 'in Fig.` 7, where the rear end of the barislshown attached to vra supporting member consisting, in KYthis yinstance, cfa hollowspindle 32 which is .rotatably supported toturn about its longitudinal axis in a hollow ramSB which is supported for endwisemotion by a series of top rollers 34j and bottom rollers 35 (see Fig. 8)

carried by av housing [consisting of a hollowv castingin the form of'a rocker 36 whichis provided with oppositely disposed trunnions 36a and 36?) l(the latter being formed in sec,- tions Vfor convenience of assembly) which trunnions arev supportedi'n bearing portions 22a of the frame 22 of the upper carriage (see Fig. 9). part of the ram-supporting rollers carriedv by the lrockerr36 rvrmay be adjustedto compensate for wear like the adj ustable jtrack engaging rollers heretofore referred to. y',

For the purpose'of moving the ram with the turning bar- Vin endwise direction toward and` from the furnace, a motoi? is provided on the frame ofthe upper carriage (see 2) and this motor has itsishaft connected by a worm andworrn wheel `gearingf`88 (see Fig. 9) to a shaft Y 89` extending centrally through the trunnions ofthe rocker 36fand providedl with a pinion 40"(.Figs-7 and 9)7 engaging a rack 41 provided on the lower side of the ram 33.

For the purpose of swinging the turning bar and ram vertically, a motor 42 is provided on the frame of the upper carriage (Fig. 2) this motor having its shaft connected by worm and worm wheel gearing, indicated at 43 in Fig. 2, to a shaft 44 which is connected by spur gearing, indicated at 45 in Fig. 2, to a shaft 46 (Fig. 8) carrying an eccentric 47 engaging a shoe 48 mounted in a pair of guideways 360 formed on the rear end of the rocker 36.

For the purpose of turning the bar 31 and spindle 32 about the axis of the latter I2 have in this instance shown at the rear of the ram a handwheel 49 which is connected by worm gearing 50 (see Fig. 7) and by a spur pinion 51 to a gear 52 secured on the rear end of the spindle 32 to which the turning bar is attached. If desired, the turning bar and spindle may of course be turned by a motor, but manual operation through the medium of a handwheel with suitable reduction gea-ring is now thought preferable.

In the use of the ingot turning machine described above, the base or body portion of the machine will be positioned in front of a particular door opening, then the ram is moved forwardly so that the turning bar will be inserted in the door opening behind one of the ingots to be moved, the upper carriage, ram and bar then being in the position indicated by full lines at the righthand side of Fig. 1. Then by moving the upper carriage laterally to the dotted line position, the ingot will be advanced to the dotted line position of the ingot as shown in Fig. l. During this lateral movement of the upper carriage, the ar swings about an axis forwardly of the machine at or about the center of the door opening, as indicated in Fig. l.

This operation is generally repeated at each door opening so that the ingots of the entire series are successively moved forward.

While I have shown the preferred construction, I do not desire to be conlined to the precise details shown, but aim in my claims to cover all modifications which do not involve a departure from the spirit and scope of the invention.

Having thus described my invention, what I claim is:

l. In combination with an ingot heating furnace having a door in the side thereof, an ingot shifting machine comprising a curved track, the center of curvature of which is substantially in the plane of the said door, a carriage movable bodily upon said curved track and supported exclusively thereby, said carriage being provided with a turning bar which is insertible through said door and which swings with the carriage.

2. In a machine of the character described, a carriage adapted to move in an arc of a circle, an ingot moving device comprising a tubular ram, means for supporting said ram upon said carriage and for moving it longitudinally with respect thereto, a spindle supported within said ram for rotation about its own axis, and an ingo moving bar removably secured to the forward end of said spindle.

3. In a machine of the character described, a frame, an arcuate track comprising a pair of concentric rails mounted upon said frame with their axis of curvature forward of the frame, a. carriage supported solely by said track, anti-friction thrust bearings mounted upon said carriage to turn on vertical axes and bear upon the forward one of said rails, and a bar mounted upon said carriage with its axis intersecting said axis of curvature.

In testimony whereof I hereunto afiix my signature.

FORD L. SABIN. 

